NB Bancorp
NBBK
130 hedge funds and large institutions have $334M invested in NB Bancorp in 2025 Q2 according to their latest regulatory filings, with 21 funds opening new positions, 44 increasing their positions, 45 reducing their positions, and 11 closing their positions.
91% more first-time investments, than exits
New positions opened: 21 | Existing positions closed: 11
7% more funds holding
Funds holding: 121 → 130 (+9)
2.29% more ownership
Funds ownership: 43.85% → 46.14% (+2.3%)
1% more capital invested
Capital invested by funds: $331M → $334M (+$3.05M)
2% less repeat investments, than reductions
Existing positions increased: 44 | Existing positions reduced: 45
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$6.58M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
+$4.22M |
| 3 |
Marshall Wace
London,
United Kingdom
|
+$3.32M |
| 4 |
PP
Pertento Partners
London,
United Kingdom
|
+$2.29M |
| 5 |
Financial Engines Advisors
Santa Clara,
California
|
+$2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$4.38M |
| 2 |
ECA
Endeavour Capital Advisors
Greenwich,
Connecticut
|
-$2.97M |
| 3 |
Bank of America
Charlotte,
North Carolina
|
-$2.93M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
-$2.14M |
| 5 |
GOCP
Great Oak Capital Partners
South Easton,
Massachusetts
|
-$2.09M |
NBBK Hedge Fund Activity: Q2 2025 in Review
130 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in NB Bancorp (NBBK) for Q2 2025, worth a combined $334M — up 0.92% from $331M a quarter earlier.
Buyers outnumbered sellers: 21 funds opened new NBBK positions and 11 closed out — a net gain of 10 holders — while 44 added to existing stakes and 45 trimmed.
The largest buyer was Millennium Management, adding an estimated $6.58M. The largest seller was BlackRock, cutting an estimated $4.38M.
- 130 institutional investors held NB Bancorp (NBBK) as of Q2 2025, up from 121 in Q1 2025.
- Funds reported $334M of NB Bancorp stock for Q2 2025, up 0.92% quarter-over-quarter.
- 21 funds opened new NB Bancorp positions in Q2 2025 and 11 closed out, a net change of +10 holders.
- The largest NB Bancorp buyer in Q2 2025 was Millennium Management, an estimated $6.58M added.
- The largest NB Bancorp seller in Q2 2025 was BlackRock, an estimated $4.38M sold.
Based on aggregated 13F filings for Q2 2025.